Channel cementing machine



Aug. 15, 1933. F. RICKS CHANNEL CEMENTING MACHINE Filed Sept. 27, 1932Patented Au 15,1933

UNITED STATES PATENT OFFICE CHANNEL consume meme Application September27, 1932, Serial No. 635,083, and in Great Britain October 21,

13 Claims.

This invention relates to channel cementing machines and is hereinillustrated as embodied in a machine well adapted for the application ofsuch channels are turned back by the channel opening machine so thatthey will not interfere with the sewing machine. This channel opening isusually performed while the sole is in temper,

but before the time arrives for cementing down the channel flap again,the flap has usually become dry and hard and frequently wrinkled orcrimped. Because of the irregular nature of the surface to which thecement is to be applied it has been the more usual practice to apply thecement to the channels, including the flaps, by means of a rotary brush,although machines have been provided for this purpose which employ solidrolls. When this is done, the problem of bringingthe wrinkled flap intocontact with the applying roll becomes more acute. Accordingly, animportant object of the present invention is to provide an improvedmachine for coating channels by means of an applying roll in whichprovision will be made for still better application of the cement,especially to the irregular surface of the channel flap.

To get adequate contact between the applying roll and the wrinkledchannel flap, provision should be made for holding the flap against theroll. Accordingly, a feature of the invention resides in a machineorganization comprising a channel-flap lifting or engaging tool andmeans 4 for imparting vibratory movement to the tool transversely of thechannel. In the illustrated arrangement the flap lifting tool isoscillated rapidly toward and away from the flap so as better to coactwith a wrinkled and curled flap gs ofa shoe sole. Provision is also madein the illustrated machine, in accordance with other features of theinvention, for controlling the oscillations of the flap engagingtool,'for regulating the amplitude of oscillations thereof, for movingso the 'flap lifting tool bodily to an inoperative positionwhen'desired, and for permitting the flap engaging tool to yield bodilyvertically to accommodate various positions of, or styles of, shoes.

In order to facilitate the application of cement both tc'the channelflapand to the channel bed,-

(Cl. 1H0) the applying roll of the illustrated machine is made as aridged roll the angularly related peripheral surfaces of which areadapted to coat the flap and the bed of the channel respectively. Stillanother feature of the invention resides in the provision of a thread orstitch receiving groove around a ridged applying roll at the apex of theridge therein. This avoids any possibility of the applying faces of theroll being held away from the surfaces to be coated by the stitches atthe bottom of the channel.

These and other features of the. invention are described in thefollowing specification and shown in the accompanying drawing in whichFig. 1 is a front elevation of the head of a machine, and

Fig. 2 is a view of the applying roll, taken on a larger scale.

The illustrated machine for coating the channels in the soles of shoesis of the type .shown in Letters Patent of the United States No.1,851,162, granted March 29, 1932, upon an application filed in the nameof John W. Cosgrove, deceased, to which reference may be had for adescription of parts of the machine not herein fully shown anddescribed. The application of cement such as latex to the channel 10 ofthe sole of a shoe 12 is effected by an applying roll 14 having upon itsperiphery two faces 15 and 17 (Fig. 2) at an angle to one another, eachface sloping toward the roll axis and forming a ridge between them. Thisroll is mounted upon a shaft 16 journaled in a bracket 18 pivoted at 20in the frame 22 of the machine. Power is supplied for driving the shaftthrough a train of gears 24 meshing with a gear 26 which is secured tothe shaft 16 by a floating joint 28. The power for driving the train ofgears 24 is delivered to the machine'through a shaft 30 having fast andloose pulleys 32 and 34.

Cement is supplied to the applying roll 14 by means of a groovedintermediate roll complementary to the roll 14 which ccacts with anotherridged pick-up roll 42 which takes cement from a tray 44. The cement iskept at a constant level in the tray 44 by means 'of a barometric supplybottle 46, and a doctor roll (not shown) is provided as in the patentedmachine for controlling the thickness of the film of adhesive on thepickup roll, this doctor roll being grooved in the same way as theintermediate roll. The quantity of adhesive applied by the roll 14 mayalso be controlled by moving the bracket 18 carrying the roll 14 towardand away from the intermediate transfer 'roll 40. This substantiallyvertical movement of the applying roll is effected by adjustment of ahand screw 48 threaded through a depending arm 50 upon the bracket 18,the screw abutting against a stop 52 in the frame. The limit of upwardmovement is determined by a hand-adjusted stop screw 54 which is set bya hand wheel 56.

By means of the mechanism thus far described cement is applied both tothe channel flap 58 and to the channel bed 59 of the sole of the shoe12, the V-shaped formation of the roll 14 permitting it to be forcedwell into the corner between the flap and the channel bed or surfacefrom which the flap was raised. If desired, the applying roll 14 may becorrugated or pocketed in order thereby to facilitate the application ofjust the required quantity of latex as the shoe is traversed past theapplying roll by the operator.

Inasmuch as the opened channel flap of a leather sole is usually stiff,rather hard and crinkled, provision has been made in the illustratedmachine for holding the flap 58 in firm contact with the outer face ofthe periphery of the applying roll by means of a flap lifting tool 60mounted in a vibrating tool carrier 62 and movable toward and away fromthe flap and in a direction transversely of the channel 10. This toolcarrier 62 is pivoted at 64 in an extension 66 of a bracket 68 securedby screws 70 to the upper face of the frame 22. The extension 66 ishinged to the bracket 68 by a pivot '72 and is held in normal or ininoperative position by a removable pin 74 passing through holes in theextension 66 of the bracket 68; When it is desired to move the flaplifting tool 60 entirely away from the applying roll 14 in order toclean the roll or to make adjustments to the machine, the pin '74 may beremoved, allowing the extension 66 to belifted, after which the pin isreplaced in the extension in a position to rest upon a notch in aprojecting lug '76 formed upon the bracket 68, the parts then assumingthe positions shown in dash lines.

Vibration of the carrier 62 to force the wrinkled fia; into firm contactwith the lateral applying face 15 of the roll 14 is eifected by means ofan actuating lever having at its lower end a roll 82 for engagement witha wavy cam face 84 on the driving pulley 32. The rapidity of theoscillations imparted insures contact of all portions of the flap withthe applying roll while at the same time withdrawing the tool from theflap often enough so that there is no impediment to the feeding of thework. The lever 80 is connected to the tool carrier by a rigid link 86and the amplitude ,of movement of the tool carrier may be changed byadjusting a pin 88 at the left end of the link 86 in a slot 90 in thetool carrier 62.

The connection of the rod 86 to the lever 80 is a yielding one, a spring81 being housed between a collar 83 on the rod and the end of the lever80. A nut on the end of the rod 86 holds the lever 80 against the spring81. This yielding connection allows the tool 60 to yield in itsvibrating movement should the thickness of a flap 58 between the tool 60and the roll 14 require it. A spring 92 interconnecting the actuatinglever 80 and a fixed point holds the roll 82 normally in engagement withthe cam 84 and the design is such that when the machine is operated atthe preferred speed the flap lifting tool 60 receives 1750 vibrationsper minute. The actuating lever 80 is pivoted at 94 upon a secondbracket 96 secured to the frame of the machine.

When it is desired to interrupt the vibrations of the flap lifting tool60, or when it is desired to move the tool away from the applying roll14 to facilitate the introduction of a piece of work, the operatoremploys a treadle 100 normally held in raised position by means of aspring 102, the treadle being shown in depressed position under theweight of the operators foot 104. The movement of this treadle iscommunicated to a bell crank lever 106 through a treadle rod 108. Thebell crank lever is pivoted upon a second bracket 96 and provided with alink 110 slotted at its outer end loosely to engage a pin 112 upon theactuating lever 80. When the treadle is depressed as shown, the link110, because of its slotted end, does not interfere with the oscillationof the actuating lever 80. When, however, the treadle is raised by thespring 102, then the link 110 draws the roll 82 of the actuating leveraway from the cam face 84. The range of movement of the bell crank lever106 is limited by the interengagement of a stop 114 thereon with 2. lug116 on the bracket 96 or with an adjustable stop screw 118 also carriedon an extension of said bracket.

Inasmuch as the angle of presentation of the shoe to the applying toolwill be somewhat different in the shank of the shoe from what it is inthe forepart and will also be different when the channel is of theAmerican type, i. e., cut in from the peripheral edge of the sole,provision is made for mounting the flap lifting tool 60 so that it isbodily yieldable by providing in the tool supporting lever an elongatedslot 120 through which the pivot pin 64 passes and providing in thisslot a sliding bearing block 122 held up against the pin 64 by a spring12 1 resting against an abutment screw 126.

Referring now to Fig. 2 the channel engaging roll shown has its frontface 15 and its rear face 17 respectively at angles of 60 and 30 to theaxis of the roll, this angular disposition being found generallyconvenient. The surfaces 15 and 1'7 are preferably broken up, so asbetter to convey coating material such as rubber latex and the like, byhaving, as shown, narrow grooves 130 out into them both radially acrossthe sur faces and in circles concentric with the roll axis. The width ofthe surface 1'7 may vary according to the work being treated. solesbeing treated should have been channelled so that some measurable marginof sole be left outside the channel it usually is desirable to avoid theapplication of coating to such margin, in which case a roll having arear face of lesser width will be employed.

In the roll shown in Fig. 2 the ridge portion between the faces 15 and1'7 is provided with a semicircular hollow groove 132. When the work tobe treated has been simply channelled, without a thread-receiving groovehaving been cut at its bottom, the thread used for stitching the solegenerally stands up in the channel bottom (that is the apex of the angleformed between the sole margin or channel bed and the channel flap) as abead, and in such an instance the groove 132 will receive the upstandingstitches of thread and, by bridging over them, will facilitate the evenengagement of the faces 15 and 1'7 with the parts to be coated. Wherethe work has been grooved as well as channelled a groove such as 132 isusually If the channelled not necessary or even desirable, and a rollmay the pedal 100 to allow the flap lifting tool 60 to be moved intocontact with the work and to be rapidly vibrated by the cam face 84 onthe pulley 32. The limit of downward movement of the treadle isdetermined by engagement of the lug 114 on the bell crank 106 with thelug 116 on the bracket 96, and in this position of the bell crank theslotted link 110-will not interfere with the oscillations of theactuating lever 80. The operator will cause the shoe to traverse thetool, moving it in one direction or the other depending upon whether hefinds it more desirable to move the shoe contrary to the direction ofmovement of the lower face of the applying roll or in the samedirection. Control of the quantity of cement applied is effected both byadjustment of the hand screw 48 and of the position of the doctor roll(not shown) whichcontrols the quantity of cement delivered to theintermediate roll 40 by the pick-up roll 42.

Having thus described my invention, what I claim as new and desire tosecure. by Letters Patent of the United States is:

1. 'In a machine for cementing the channels of shoe soles, a coatingapplying member, a channel flap engaging tool, and means for impartingto the tool vibratory movement in a direction transversely of a channelengaged by the coating member.

2. In a machine for cementing the channels of shoe soles, a rigidcoating applying member having surfaces adapted for simultaneousengagement with the flap and the bed of a channel in a solerespectively, and bodily yieldable vibratory means for forcing thechannel flap into engagement with one of the surfaces of the applyingmember.

3. In a machine for cementing the channels of shoe soles, a rigidcoating applying member having surfaces adapted for simultaneousengagement with the flap and the bed of the channel in a solerespectively, and a vibratory flap engaging tool movable toward and awayfrom said flap adapted to force the channel flap into contact with oneof the surfaces of said coating applying member.

4. In a machine for cementing the channels of shoe soles, a rigidcoating applying member having surfaces adapted for simultaneousengagement with the flap and the bed of the channel in a solerespectively, a vibratory flap engaging tool movable toward and awayfrom'said flap adapted to force the channel flap into contact with oneof the surfaces of said coating applying member, and operator-controlledmeans for moving the channel flap engaging tool into and out ofoperative position independently of the manipulation of the shoe beingpresented to the machine.

5. In a machine for coating the channels of boots and shoes, an applyingroll having angularly related peripheral surfaces and a power drivenoscillatory flap engaging tool movable toward and away from a sideperipheral surface of the applying roll to hold the flap in contact withsaid roll as the shoe is moved past the tool.

6. In a cementing machine, an applying roll for coating the channel of ashoe sole, a vibrating flap engaging tool for holding the flap inengagement with the applying roll, means for vibrating said toolcomprising a spring for moving the tool into engagement with the flap,and a cam for drawing the tool away from the flap.

7. In a cementing machine, an applying roll for coating the channel of ashoe sole, a vibrating flap engaging tool for holding the flap inengagement with the applying roll, means for vibrating said toolcomprising a spring for moving the tool into engagement with the flap, acam for drawing the tool away from the flap, and operator-controlledmeans for rendering said cam ineffective.

8. In a machine for cementing the channels of shoe soles, an applyingroll having angularly related peripheral surfaces adapted to coat theflap and the bed of the channel respectively, an oscillatory flapengaging tool movable toward and away from said flap, means foroscillating said tool, and means for varying the amplitude of theoscillations.

9. In a machine for cementing the channels of shoe soles, an applyingroll having angularly related peripheral surfaces adapted to coat theflap and the bed of the channel respectively, an oscillatory flapengaging tool movable toward and away from said flap, means foroscillating said tool comprising a cam and a spring, andoperator-controlled means movable between fixed limits to two positions,said means being operative in one position to permit oscillatorymovement to be imparted to the tool and in the other position tointerrupt the oscillatory movement.

10. In a machine for cementing the channels of shoe soles, an applyingroll having angularly related peripheral surfaces adapted to coat theflap and the bed of the channel respectively, an oscillatory flapengaging tool movable toward and away from said flap, said tool beingmounted upon a pivoted carrier, displaceable means for supporting saidcarrier, and means for holding said displaceable means in operative andin inoperative positions.

11. In a machine for cementing the channels of shoe soles; an applyingroll having angularly related peripheral surfaces adapted to coat theflap and the bed of the channel respectively, an oscillatory flapengaging tool movable toward and away from said flap substantially inthe plane of the axis of said applying roll, means for supporting saidtool comprising a pivoted carrier, and a vertically yieldable pivotalsupport for said carrier.

12. In a machine for cementing the channels of shoe soles, a ridgedapplying roll having angularly related peripheral faces adapted to coatthe flap and the bed of the channel respectively, said applying rollbeing provided with a peripheral thread receiving groove between theadjacent edges of said angularly related surfaces at the apex of theridge, and means for supplying cement to said roll.

13. In a machine for cementing the channels of shoe soles, an applyingroll having angularly related peripheral surfaces adapted to coat theflap and the bed of the channel respectively and a narrow peripheralsurface interposed between said angularly related surfaces and formingan angle with each of them, and means for supplying cement to said roll.

FRED RICKS.

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